V4L/DVB (12518): ov772x: S_CROP must return actually configured geometry

V4L2 drivers are allowed to configure a geometry different than what has been
requested by the user with S_CROP, but then they have to adjust the input
rectangle accordingly. Fix ov772x to comply with this requirement.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/ov772x.c

@@ -960,12 +960,18 @@ static int ov772x_set_crop(struct soc_camera_device *icd,
 {
 	struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
 	struct ov772x_priv *priv = to_ov772x(client);
+	int ret;
 
 	if (!priv->fmt)
 		return -EINVAL;
 
-	return ov772x_set_params(client, &rect->width, &rect->height,
+	ret = ov772x_set_params(client, &rect->width, &rect->height,
 				priv->fmt->fourcc);
+	if (!ret) {
+		rect->left = 0;
+		rect->top = 0;
+	}
+	return ret;
 }
 
 static int ov772x_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)